e/Data differencing

Information
has gloss	eng: In computer science and information theory, data differencing or differential compression is producing a difference between two sets of data – a source and a target. Formally, a data differencing algorithm takes as input source data and target data, and produces difference data ("differencing"), such that given the source data and the difference data, one can reconstruct the target data ("patching" the source with the difference to produce the target).
lexicalization	eng: Data differencing
lexicalization	eng: Differential compression
instance of	e/Data (computing)